SQL Server - allow Null từ cột NOT NULL trong Câu SELECT

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hongltt

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[#45]

khaibl đăng này 26 Tháng Mười 2017

SELECT COALESCE((Select Top 1 dien_giai From ct70 where 1=0),NULL) as dien_giai2, ...

Thông qua hàm COALESCE

Posted : 15/05/2020 2:48 am

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